Memory foam is a type of polyurethane foam that is known for its unique ability to conform to the shape of the body. Originally developed by NASA in the 1960s to improve seat cushioning in aircraft, it has since become popular in mattresses and pillows. The foam responds to heat and pressure, allowing it to mold to the contours of a person’s body, providing support and comfort. One of the key features of memory foam is its ability to distribute weight evenly, which can help reduce pressure points and improve sleep quality. Additionally, it has excellent motion isolation properties, meaning that movement on one side of the bed is less likely to disturb a partner on the other side.